Blueberry Crisp — This EASY blueberry crisp is topped with a crunchy oat topping that’s impossible to resist! This fruit crisp is delicious as is, but you could also serve it with a dollop of whipped cream or a scoop of ice cream.
The BEST Blueberry Crisp Recipe
I love crumble topping anything and when paired with big juicy blueberries, I can’t resist. Even better when it’s a fast, easy, no-mixer, flexible recipe.
In fact, I adapted my Raspberry Peach Crisp to create this blueberry crisp recipe, I used used blueberries rather than raspberries and peaches.
The sweet, juicy blueberries contrasted perfectly with the crispy and crumbly oat-based topping. I much prefer this to blueberry pie because there’s no crust to make and roll out. Instead, there’s a crumble topping, which trumps pie crust every day of the week.
Although make sure to check out my Crustless Blueberry Pie which is somewhere in between pie, cake, and blondies if you need another blueberry dessert recipe!
I tried to keep the blueberry crisp a bit healthier and skipped the whipped cream and ice cream, but no doubt it would be amazing a la mode.
What’s in the Blueberry Crisp?
For this easy blueberry crisp with oat topping, you’ll need:
- Fresh blueberries
- Granulated sugar
- Lemon juice
- Unsalted butter
- Brown sugar
- Old-fashioned oats
- All-purpose flour
Note: All ingredients amounts are listed in the recipe card section when you keep scrolling down.
Can I Use Instant Oats?
No, you cannot use quick cook or steel cut oats for this recipe.
Old-fashioned (or rolled) oats are the only kind of oats that work on top of fruit crisps like this one. The old-fashioned oats crisp up nicely and become golden and chewy in the oven.
How to Make Blueberry Crisp
To make this simple blueberry crisp, follow these easy steps:
- First add the blueberries, granulated sugar, lemon juice, and cornstarch to a bowl and toss gently to combine.
- In a separate large bowl, add the butter, brown sugar, oats, flour, and salt. Using two forks (or a pastry cutter, if you have one), cut the butter into the dry ingredients until small pea-sized clumps form.
- Give the fruit another stir and turn out into a greased pie plate.
- Sprinkle the crumble mixture over the berries.
- Then bake for about 45 to 50 minutes. You’ll know the crisp is done when the juices are bubbling around the edges and the topping is golden brown.
- Serve this easy blueberry crisp with some whipped cream or whipped topping, or a scoop of vanilla ice cream for a dedadent treat.
Can I Use Frozen Blueberries?
I used fresh blueberries because they’re in season, but I think you could get away with frozen.
In this Raspberry Peach Crisp, I used frozen berries and baking with frozen fruit is cheaper and available year-round. Just watch the baking time if you opt for frozen because it will likely increase a bit.
Can I Double This Recipe?
Yes, this blueberry crisp recipe may be doubled and baked in a 9×13-inch baking dish.
Baking time will not double – it may increase by 5-10 minutes, if that.
Storing Easy Bluberry Crisp
I store my crisp on the counter, covered in plastic wrap for up to 3-4 days. You can also store it in the refrigerator.
As time passes, the crispness of the crispy topping will diminish and it will become softer. This is just the nature of a crisp and there’s nothing you can do about it.
You can also freeze extra blueberry crisp, although the crumble topping will not retain crispiness after you thaw it and the texture will change.
Tips for the Best Blueberry Crisp
Feel free to mix-and-match the blueberries with other fresh or frozen fruit like strawberries, raspberries, peaches, or nectarines. Aim for a total of 4 cups of fruit.
When you first add the oatmeal topping on top of the blueberry layer, it’ll look like you’ve made way too much. The crisp topping actually sinks into the blueberries as the crisp bakes, so it winds up being the perfect amount!
One last note: when you bake the blueberry crisp, place the pie dish on a cookie sheet. This way, if the filling spills over at all the cookie sheet will catch the mess and it won’t stick to the bottom of your oven!
1 hour 10 minutes
- 4 cups fresh blueberries
- 1/2 cup granulated sugar
- 2 tablespoons lemon juice
- 2 tablespoons cornstarch
- 6 tablespoons unsalted butter, cold (3/4 of 1 stick)
- 1/2 cup brown sugar
- 1/2 cup old-fashioned whole-rolled oats (not quick cook or instant)
- 1/2 cup all-purpose flour
- 1/4 teaspoon salt, or to taste
- whipped cream, whipped topping, or ice cream, optional for serving
- Preheat oven to 350F. Spray a 9-inch pie dish with cooking spray; set aside.
- Tp a large bowl, add the blueberries, granulated sugar, lemon juice, cornstarch, and toss gently to combine until all white traces have disappeared; set aside.
- To a separate large bowl, add the butter, brown sugar, oats, flour, salt, and using two forks, cut the butter into the dry ingredients until small pea-sized clumps and some sandy bits form; set aside.
- Give the fruit another stir and turn out into the prepared dish, scraping out and including any juice that collected in the mixing bowl.
- Evenly sprinkle the crumble mixture over the berries. It looks like a lot when sprinkling, but as the crisp bakes, it seeps down into the berries and it turns out to be just the right amount.
- Place pie dish on a cookie sheet (insurance is case there’s an overflow in the oven) and bake for about 45 to 50 minutes. If using frozen fruit, baking time may vary. Crisp should be bubbling a bit near the edges of dish and topping should be very lightly golden browned and set.
- Place pie dish on a wire rack to cool for at least 15 minutes before serving. Optionally serve with whipped cream, whipped topping, or ice cream.
- Crisp will keep airtight at room temp for up to 3-4 days, noting that the topping will soften as time passes. It can be frozen for up to 3 months, but again, the topping will not retain its crispiness upon thawing it.
Amount Per Serving:
Calories: 339Total Fat: 12gSaturated Fat: 7gTrans Fat: 0gUnsaturated Fat: 4gCholesterol: 31mgSodium: 86mgCarbohydrates: 51gFiber: 3gSugar: 36gProtein: 3g
More Blueberry Desserts:
Blueberry Pie Bars – Super soft, easy bars with a creamy filling, streusel topping and abundance of juicy blueberries!
Crustless Blueberry Pie — Somewhere in between pie, cake, and blondies is what you get with this FABULOUS blueberry dessert recipe! Take advantage of those FRESH blueberries!
Blueberry Streusel Coffee Cake – An EASY, no-mixer cake studded with juicy blueberries and topped with big buttery streusel nuggets that are just SO GOOD!! Not overly sweet and PERFECT with a cup of coffee for breakfast, brunch, or a snack!!
Blueberry Oatmeal Crumble Bars — Fast, easy, no-mixer bars great for breakfast, snacks, or a healthy dessert! BIG crumbles and juicy berries are irresistible!
Blueberry Banana Bread with Blueberry Butter – A fun twist on a banana bread with lots of juicy blueberries!
Blueberry Zucchini Bread — Blueberry zucchini bread is an easy, no mixer recipe that’s perfectly sweet with juicy blueberries in every bite.
Blueberry Banana Zucchini Bread — This is an easy zucchini bread recipe that’s packed with bananas and juicy blueberries. I guarantee this will be your new favorite quick bread!
Healthier Lemon Blueberry Pound Cake— The blueberry-lemon combo is always a win, and so is pound cake that won’t break your caloric piggybank.
Originally published May 22, 2019 and republished June 2, 2023 with updated text.